雷暴日

年平均雨日为147d，雷暴日为96d；

The mean annual rain day was 147d and thunderstorm day was 96d .

人工观测与闪电定位探测雷暴日资料的对比分析

The Contrast And Analysis Of The Thunderstorm Day Data Of Artificial Observation And Lightning Orientation

CCA方法用于月雷暴日资料的延长是可行的。

The datum extension method based on PC-CCA is feasible .

持续型（秋季型）的ELNino事件可能会引起上海地区年雷暴日数异常偏多，而少雷暴年则多为ENSO（ELNino/SouthernOscillation）冷暖事件的更替年。

Durative El Nino events are likely to induce the abnormal increment of the thunderstorm frequency while fewer thunderstorms occur in the period of ENSO ( El Nino / Southern Oscillation ) transformation years .

利用我国30年历年雷暴日资料，采用EOF和主值函数分析等方法，对我国年平均雷暴日的时空分布特征及其异常变化进行了研究。

The diagnostic studies for the features of spatial and temporal distribution of the annual mean thunderstorm in China are made with EOF and main function analysis by using 30 year data from 104 observational stations .

结果表明：41年来，长江三峡库区年平均雷暴日数较多，一般为34～45d，其中库区西北部和中南部为多雷区；年际变化大，最多年比最少年一般偏多27～61d；

The results show that the mean annual number of thunderstorm days are 34 ~ 45d , and interannual thunderstorm variability is large , the difference between the maximum and minimum of annual thunderstorm days is 27 ~ 61d .

河南省雷暴日数时空分布的非均一性特征

Non-uniformity of spatiotemporal distribution of annual thunderstorm days in Henan Province

江苏雷暴日发生规律及其大气环流预报模型的建立

Statistical Characteristics and Atmospheric Circulation Patterns of Thunder Days in Jiangsu Province

山西省雷暴日时空分布特征分析

Spatial-temporal characteristics of the Number of Thunderstorm Days in Shanxi

近40年潍坊地区雷暴日的气候特征

Climatological Characteristics of Thunderstorms in Weifang in Past 40 Years

基于PC&CCA方法的雷暴日数资料序列延长模式试验

Datum extension of meteorological thunderstorm days based on PC-CCA

在此基础上进行各月累加平均求取年平均雷暴日资料也是可行的。

And then perennial average of monthly number of thunderstorm days is obtained .

镇江地区雷暴日的时空分布及雷暴日异常多年的特征分析

The lightning activities distribution and the analysis of characteristics of abnormal years in Zhenjiang

结果表明：年平均雷暴日的分布大致可分为4个区域。

Results show that the distribution of thunderstorm in China is divided into 4 regions .

雷击地闪密度与雷暴日数的关系分析

The analysis on the relationship between density of ground lightning strokes and the number of thunderstorm days

研究表明，雷暴日、闪电日的长期趋势有明显的季节变化。

As shown in our study , long-term tendency of thunderstorm and lightning days have significant seasonal variation .

广东省平均每10年雷暴日减少4.8天、闪电日减少9.5天。

For every 10 years , the thunderstorm has decreased by 4.8 days and lightning by 9.5 days on average .

结果表明：陕西省年平均雷暴日数为25.3天，呈现南北多、中部少的分布特点；

The main results are as follows : The annual averaged days of thunderstorm in Shaanxi province are 25.3 days .

通过小波分析得到上海地区雷暴日年变化的主周期约为6年。

It is also shown that the dominant period of the annual thunderstorm variations is about 6 years in Shanghai .

陆上终端站址所在地区年平均雷暴日为62天，属于多雷区。

The annual thunderstorm days of the onshore terminal station site are62 , so the site belongs to the more thunderstorm region .

广州市雷暴日异常的基本气候特征及其与近海海温关系初探

On basic climate characteristics of thunderstorm days anomalies of Guangzhou City and preliminary discussion of its relationship with SST over offshore waters in

据统计，我国有21个省、区、市雷暴日在50天以上，最多的可达134天。

According to the Stat. , the lightning day in 21 provinces , municipalities or cities is above 50 , and the most one is 134 at best .

整个库区年雷暴日数的变化均存在不同程度的减少趋势，气候倾向率为1～7d/10a；

For the region as a whole , the annual number of thunderstorm days have a decreasing trend with trend ratios reaching - 1 ~ - 7d / 10a .

安徽池州地区，大部分为山区和丘陵地带，平均年雷暴日在50左右，属于多雷电活动地区。

Most area of chizhou , anhui is mountainous and hilly area , the average annual thunderstorm day is about 50 , which means it belongs to strong lightning activity areas .

雷暴日数南多北少，20世纪80年代中期以前8-10a的周期显著，其总趋势是减少的。

Thunderstorm days were more in the south and less in the north , the period of 8-10 years was remarkable before the middle of the 1980s and the general trend of thunderstorm days was decreasing .

根据广东省近10年来的雷电灾害统计资料和近35年来的雷暴日观测统计资料，提炼出雷击密度、雷电灾害频度、经济损失模数、生命易损模数作为雷灾易损性评价指标。

With 10 years ' statistical data and the date of thunderstorm-day in 35 years of Lightning disaster in Guangdong province , lightning strike density , lightning disaster frequency , economic loss rate and population exposed to lightning disaster are selected as vulnerability evaluation indexes .

根据江苏省1961~2003年逐日气象资料，通过数理统计方法分析得出：江苏各地全年有96%~98%雷暴日出现在3~9月，平均年雷暴日数为27~36天。

Based on the meteorological data from 1961 to 2003 in Jiangsu Province , the statistical analysis indicates : 96 % to 98 % thunder days occurs in March and September , and the number of thunder days is 27 to 36 days in a normal year .

北京地区雷暴大风日θe平均廓线特征

θ _e Profile Characteristics of Downburst Days in Beijing Area

结果表明：雷暴初日北部平原呈推迟的趋势（2.7d/10a），南部山区在其平均期（4月20日）附近上下摆动。

Results show that the first dates of thunderstorm presented a delay trend ( 2.7 d / 10 a ) in the north plain ;

季节性显著，冬季无雷暴，盛夏雷暴日数占全年雷暴日数的2/3左右。

About 2 / 3 thunderstorms occur in summer and none in winter .